Species | Oxygen | P | Vmax/K0.5 (l g-1DW h-1) | α (l g-1DW h-1) |
---|
Cladium
| High oxygen | Low | 2.43 ± 0.40 | 0.75 ± 0.17 |
 |  | High | 0.40 ± 0.22 | 0.28 ± 0.20 |
 | Low oxygen | Low | 3.40 ± 0.27 | 1.44 ± 0.15 |
 |  | High | 0.86 ± 0.20 | 0.32 ± 0.07 |
Typha
| High oxygen | Low | 2.51 ± 0.35 | 0.84 ± 0.14 |
 |  | High | 1.63 ± 0.29 | 0.90 ± 0.25 |
 | Low oxygen | Low | 7.25 ± 1.77 | 4.08 ± 0.50 |
 |  | High | 1.17 ± 0.13 | 1.05 ± 0.34 |
- Average (± SE, n = 4-8) ratio between Vmax and K0.5 as estimated by the modified Michaelis-menten model (Vmax/K0.5) and the slope of the initial part of the uptake curve (α) as a measure of the affinity for P uptake of Cladium mariscus spp. jamaicense and Typha domingensis plants acclimated to low and high P level (5 and 500 μg P l-1) and to aerated and low oxygen conditions (8.0 and <0.5 mg O2 l-1) in hydroponic culture solutions